North Dakota State continued its incredible streak of beating teams from college football’s top division when it downed 13th-ranked Iowa 23-21 thanks to a last-second field goal.

The Bison had attempted to win with a two-point conversion minutes before, but failed. It’s the first time NDSU has beaten a ranked team in the school’s history; it’s Iowa’s first-ever loss to an FCS team.

The last FBS team to topple NDSU was Iowa State, way back in 2009. The Bison have now beaten six FBS teams in a row.